Returns an array reference containing all the live SVs. Note that this will include a reference back to itself, so you should manually clear this array (via @$arena = ()) when you are done with it, if you don't want to create a memory leak.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.